A clean and environmentally friendly tin recovery system and tin recovery method

Abstract

The present invention discloses a clean and environmentally friendly tin recovery system, comprising a smelting furnace, a collection device, a disengagement device, and a crusher. The collection device comprises a base, a lifting frame, a rotating frame, a sliding frame, a connecting frame, and a heat-conducting sleeve. The disengagement device comprises a stand, a movable frame, and a cutting mechanism. The stand is fixedly connected to a guide plate located below the cutting mechanism. A first conveyor belt is provided between the guide plate and the feed end of the crusher. The smelting furnace is provided with a feed port. A second conveyor belt is provided between the discharge end of the crusher and the feed port. A clean and environmentally friendly tin recovery method is also disclosed. The method comprises the following steps: collecting tin slag, cutting the tin slag, crushing the tin slag, and recovering tin. The present invention has the following beneficial effects: no waste liquid pollution is generated during the tin recovery process, the impact on the environment is small, the impact on the environment is small, and it is beneficial to environmental protection, achieving the advantages of cleanliness and environmental protection.

Description

Technical Field

[0001] The present invention relates to the technical field of tin recovery systems, and in particular to a clean and environmentally friendly tin recovery system and a tin recovery method. Background Art

[0002] Tin can be used to make a variety of basic industrial materials such as tinplate, barbiturate alloy, movable type alloy, etc. Tin metal materials are of vital importance to industrial development.

[0003] A Chinese utility model patent with the announcement number CN206387256U discloses a durable tin-smelting electric furnace lined with chrome-magnesia bricks that has a long service life and can achieve continuous discharge. The technical solution adopted by this utility model is: a durable tin-smelting electric furnace lined with chrome-magnesia bricks, including a smelting furnace and a discharge furnace. A first tin outlet is provided at the bottom of the smelting furnace near the discharge furnace, and the smelting furnace is connected to the lower part of one side of the discharge furnace through the first tin outlet. The smelting furnace and the discharge furnace are both composed of a steel shell and a chrome-magnesia brick layer provided on the inner wall of the shell. A second tin outlet is provided at the upper part of the discharge furnace away from the smelting furnace, and a slag outlet is provided in the middle part of the smelting furnace away from the discharge furnace. The top of the smelting furnace is a furnace cover, which is in the shape of a spherical surface protruding upward. A feed port and three electrode insertion ports are provided on the furnace cover, and the feed port is located in the center of the furnace cover. Continuous tin discharge is achieved without stopping the furnace, with high production efficiency and a long service life.

[0004] A Chinese invention patent application, published as CN117845047A, discloses a tin slag recovery method, relating to the field of solid waste treatment technology. The recovery method comprises: crushing the tin slag to be processed to obtain tin slag particles of a predetermined particle size; placing the tin slag particles in a leaching tank, introducing a leachate into the leaching tank according to a predetermined ratio, stirring and leaching to obtain a leached product; filtering the leached product to obtain a solid product and a liquid product; and leaching and filtering the solid product again, repeating this process a first predetermined number of times; subjecting the liquid product to a constant temperature reaction under first predetermined conditions to obtain a reaction solution; subjecting the reaction solution to electrodeposition under second predetermined conditions to obtain a deposition product; and filtering the deposition product to obtain valuable metals and a deposition liquid; and after the second predetermined number of electrodepositions, treating the deposition liquid to obtain a leachate for recycling, wherein the second predetermined number of times is ≥1. This method solves the problem of waste liquid recycling during the wet recovery of tin slag.

[0005] Existing tin smelting processes often leave a layer of tin slag on the surface during the smelting process. To ensure the quality of the resulting tin metal products, the slag must be removed from the smelting furnace. Existing tin recovery methods also produce excessive wastewater pollution, significantly impacting the environment and being detrimental to environmental protection. Therefore, a clean and environmentally friendly tin recovery system is lacking in the prior art. Summary of the Invention

[0006] To address the above technical issues, the present invention provides a clean and environmentally friendly tin recovery system comprising a smelting furnace, a collection device, a separation device, and a crusher. Furthermore, the present invention provides a clean and environmentally friendly tin recovery method comprising the following steps: collecting tin slag, cutting the tin slag, crushing the tin slag, and recovering the tin. This clean and environmentally friendly tin recovery system offers the advantages of being clean and environmentally friendly.

[0007] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is as follows:

[0008] A clean and environmentally friendly tin recovery system includes a smelting furnace, a collection device, a separation device and a crusher. The collection device includes a base, a lifting frame, a rotating frame, a sliding frame, a connecting frame and a heat-conducting sleeve. The lifting frame is vertically slidably connected to the base, a lifting drive member is provided between the lifting frame and the base, the rotating frame is rotatably connected to the lifting frame, a servo drive mechanism is provided between the rotating frame and the lifting frame, the sliding frame is horizontally slidably connected to the rotating frame, a telescopic drive member is provided between the sliding frame and the rotating frame, the connecting frame is installed on the sliding frame, and the smelting furnace is provided with a The slag removal port for the connecting frame to extend into, the heat-conducting sleeve is installed on the connecting frame, the disengagement device includes a table, a movable frame, and a cutting mechanism, the movable frame is horizontally slidably connected to the table, a translation drive member is provided between the movable frame and the table, the cutting mechanism is fixedly installed on the movable frame, the cutting mechanism corresponds to the position of the heat-conducting sleeve, the table is fixedly connected with a guide plate located below the cutting mechanism, a first conveyor belt is provided between the bottom of the guide plate and the feed end of the crusher, the smelting furnace is provided with a feed port, and a second conveyor belt is provided between the discharge end of the crusher and the feed port.

[0009] Through such a setting: no waste liquid pollution will be generated in the process of tin recovery, the impact on the environment is small, the impact on the environment is small, it is beneficial to environmental protection, and the advantages of cleanness and environmental protection are achieved.

[0010] Preferably, the servo drive mechanism includes a rotary drive member, a driving gear and a driven gear, the rotary drive member is mounted on the base, the driving gear is fixedly mounted on the output shaft of the rotary drive member, the driven gear is fixedly connected to the rotating frame, and the driving gear is meshed with the driven gear.

[0011] Through such an arrangement, the function of driving the rotating frame to rotate on the base is achieved through the servo drive mechanism.

[0012] Preferably, the connecting frame is rotatably connected to the sliding frame, the sliding frame is rotatably connected to a driving sprocket, the connecting frame is fixedly connected to a driven sprocket, a chain is wound between the driving sprocket and the driven sprocket, and the sliding frame is fixedly installed with an output shaft and a collection drive component fixedly connected to the driving sprocket.

[0013] Through such an arrangement, tin slag at different positions can be collected, thereby improving the cleaning effect of the tin slag in the smelting furnace.

[0014] Preferably, the sliding frame is equipped with an air pump, the air pump is connected to an air supply pipe, the sliding frame is provided with a connecting hole connected to the air supply pipe, the sliding frame is provided with a semi-lunar air inlet groove, the semi-lunar air inlet groove is arc-shaped as a whole, and the arc center of the semi-lunar air inlet groove is located on the rotation axis of the connecting frame, the semi-lunar air inlet groove is connected to the connecting hole, the sliding frame is provided with a semi-lunar exhaust groove, the semi-lunar exhaust groove is arc-shaped as a whole, and the arc center of the semi-lunar exhaust groove is located on the rotation axis of the connecting frame, the connecting frame is provided with a cooling air path, the cooling air path is provided with a cooling section located at the heat-conducting sleeve, a first air hole and a second air hole are provided at both ends of the cooling air path, the first air hole and the second air hole are both located at one end of the connecting frame close to the sliding frame, and the first air hole and the second air hole are respectively connected with the semi-lunar air inlet groove and the semi-lunar exhaust groove.

[0015] Through such a setting, it is ensured that the tin slag can be stably bonded to the thermal sleeve.

[0016] Preferably, the arc radii of the semi-lunar air inlet groove and the semi-lunar exhaust groove are equal.

[0017] Through such an arrangement, the state of being connected with the first air hole and the second air hole can be maintained.

[0018] Preferably, the heat-conducting sleeve is rotatably connected to the connecting frame, and one end of the heat-conducting sleeve away from the connecting frame is fixedly connected to a clamping plate.

[0019] Through such an arrangement, more tin slag can be collected through the thermal sleeve.

[0020] Preferably, the cutting mechanism comprises a plurality of blades, the blades being fixedly connected to the movable frame, the plurality of blades being evenly distributed around the circumference of the heat-conducting sleeve, and avoidance grooves for the card plates to be inserted into are provided between adjacent blades.

[0021] Through such an arrangement, the function of cutting off the tin slag on the heat-conducting sleeve is achieved by the cutting mechanism.

[0022] Preferably, the connecting frame is provided with an electric heating plate, and the electric heating plate is located in the cooling section.

[0023] Through such an arrangement, it is ensured that the tin slag can be removed by the cutting mechanism.

[0024] Preferably, the end of the heat-conducting sleeve away from the connecting frame is provided with a chamfer for abutting against the inserting knife.

[0025] Through such an arrangement, the function of positioning the inserting knife is realized.

[0026] A clean and environmentally friendly tin recovery method uses a clean and environmentally friendly tin recovery system, characterized by: comprising a smelting furnace, a collection device, a separation device and a crusher, the collection device comprising a base, a lifting frame, a rotating frame, a sliding frame, a connecting frame and a heat-conducting sleeve, the lifting frame is vertically slidably connected to the base, a lifting drive member is provided between the lifting frame and the base, the rotating frame is rotatably connected to the lifting frame, a servo drive mechanism is provided between the rotating frame and the lifting frame, the sliding frame is horizontally slidably connected to the rotating frame, a telescopic drive member is provided between the sliding frame and the rotating frame, and the connecting frame is mounted on the sliding frame. The smelting furnace is provided with a slag removal port for the connecting frame to extend into, the heat-conducting sleeve is installed on the connecting frame, the disengagement device includes a table, a movable frame, and a cutting mechanism, the movable frame is horizontally slidably connected to the table, a translation drive member is provided between the movable frame and the table, the cutting mechanism is fixedly installed on the movable frame, the cutting mechanism corresponds to the position of the heat-conducting sleeve, the table is fixedly connected with a guide plate located below the cutting mechanism, a first conveyor belt is provided between the lower part of the guide plate and the feed end of the crusher, the smelting furnace is provided with a feed port, and a second conveyor belt is provided between the discharge end of the crusher and the feed port;

[0027] The method comprises the following steps:

[0028] Collecting tin slag: The servo drive mechanism drives the rotating frame to rotate to the position where the thermal sleeve is opposite to the slag removal port. The telescopic drive member drives the thermal sleeve to move through the slag removal port into the smelting furnace. The lifting drive member drives the lifting frame and the thermal sleeve downward until the thermal sleeve contacts the slag in the smelting furnace. The thermal sleeve absorbs heat, causing the slag to cool and solidify and then adhere to the thermal sleeve. The lifting drive member drives the lifting frame and the thermal sleeve upward, and the telescopic drive member drives the thermal sleeve to move outside the smelting furnace.

[0029] Cutting tin slag: The servo drive mechanism drives the rotating shoulder to rotate to the position where the heat-conducting sleeve and the cutting mechanism are opposite. The translation drive member drives the movable frame and the cutting mechanism to move toward the heat-conducting sleeve, so that the cutting mechanism contacts the tin slag. After the cutting mechanism cuts the tin slag, the tin slag falls onto the guide plate, and the tin slag rolls along the guide plate to the first conveyor belt;

[0030] Crushing tin slag: The first conveyor belt transports the tin slag to the crusher, which crushes the tin slag and then transports it to the second conveyor belt;

[0031] Tin recovery: The second conveyor belt transports the tin slag to the feed port of the smelting furnace, where the smelting furnace melts the tin slag.

[0032] Through such a setting: no waste liquid pollution will be generated in the process of tin recovery, the impact on the environment is small, the impact on the environment is small, it is beneficial to environmental protection, and the advantages of cleanness and environmental protection are achieved.

[0033] Compared with the prior art, the present invention has achieved beneficial technical effects:

[0034] Tin slag contains molten tin. Since tin will adhere to the tin slag, directly removing the tin slag will also result in the removal of the tin attached to the tin slag. The present invention absorbs the heat of the tin attached to the tin slag after the heat-conducting sleeve contacts the tin slag, causing the tin to cool, solidify, and adhere to the heat-conducting sleeve. This allows the tin slag to move with the heat-conducting sleeve to the outside of the smelting furnace, thereby achieving the function of collecting the tin slag. At this time, the tin slag in the smelting furnace can be reduced, which is conducive to the production of higher-quality tin products. After the heat-conducting sleeve moves toward the cutting mechanism, the movable frame drives the cutting mechanism to move, so that the cutting mechanism contacts the tin slag and cuts the tin slag from the heat-conducting sleeve. The tin slag is then conveyed to the crusher via the first conveyor belt for crushing, and then conveyed to the smelting furnace via the second conveyor belt for re-smelting, thereby achieving tin recovery. In the process of recovering tin, no waste liquid pollution is generated, the impact on the environment is small, and the environmental protection is achieved, achieving the advantages of cleanliness and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic structural diagram of a clean and environmentally friendly tin recovery system according to an embodiment of the present invention;

[0036] Figure 2 1 is a schematic structural diagram of a collection device according to an embodiment of the present invention;

[0037] Figure 3 is a cross-sectional view of a connecting frame and a heat-conducting sleeve according to an embodiment of the present invention;

[0038] Figure 4 This invention Figure 3 Cross-sectional view at AA in the middle;

[0039] Figure 5 2 is a schematic structural diagram of a disengagement device in an embodiment of the present invention.

[0040] The technical features indicated by the reference numerals are as follows:

[0041] 10. Smelting furnace; 11. Slag removal port; 12. Feed port; 20. Collecting device; 21. Base; 22. Lifting frame; 23. Rotating frame; 24. Sliding frame; 25. Lifting drive; 26. Telescopic drive; 27. Rotating drive; 28. Driving gear; 29. ​​Driven gear; 31. Connecting frame; 32. Heat-conducting sleeve; 33. Clamping plate; 34. Heating plate; 35. Chamfering; 36. Driving sprocket; 37. Driven sprocket; 38. Chain ; 39. Collection drive member; 41. Air pump; 42. Air supply pipe; 43. Connecting hole; 44. Semi-lunar air inlet groove; 45. Semi-lunar exhaust groove; 46. Cooling air path; 47. Cooling section; 48. First air hole; 49. Second air hole; 50. Disengagement device; 51. Stand; 52. Movable frame; 53. Translational drive member; 54. Insert knife; 55. Avoidance groove; 60. Crusher; 61. Guide plate; 62. First conveyor belt; 63. Second conveyor belt. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the embodiments, but the scope of protection claimed in the present invention is not limited to the following specific embodiments.

[0043] refer to Figure 1 A clean and environmentally friendly tin recovery system includes a smelting furnace 10, a collection device 20, a separation device 50 and a crusher 60.

[0044] refer to Figure 1 and Figure 2 The collection device 20 includes a base 21, a lifting frame 22, a turret 23, a sliding frame 24, a connecting frame 31, and a heat-conducting sleeve 32. The lifting frame 22 is vertically slidably connected to the base 21. A lifting drive 25 is provided between the lifting frame 22 and the base 21. The lifting drive 25 is a hydraulic cylinder. The turret 23 is rotatably connected to the lifting frame 22. A servo drive mechanism is provided between the turret 23 and the lifting frame 22. The servo drive mechanism includes a rotary drive 27, a driving gear 28, and a driven gear 29. The rotary drive 27 is mounted on the base 21. The driving gear 28 is fixedly mounted on the output shaft of the rotary drive 27. The driven gear 29 is fixedly connected to the turret 23. The driving gear 28 meshes with the driven gear 29. The rotary drive 27 is a servo motor. The rotary drive 27 drives the turret 23 to rotate via the driving gear 28 and the driven gear 29, thereby realizing the function of driving the turret 23 to rotate on the base 21 through the servo drive mechanism. The sliding frame 24 is horizontally slidably connected to the rotating frame 23 . A telescopic driving member 26 is provided between the sliding frame 24 and the rotating frame 23 . The telescopic driving member 26 is a hydraulic cylinder.

[0045] The connecting frame 31 is mounted on the sliding frame 24. The smelting furnace 10 is provided with a slag removal port 11 into which the connecting frame 31 extends. The heat-conducting sleeve 32 is mounted on the connecting frame 31. The connecting frame 31 is rotatably connected to the sliding frame 24. The sliding frame 24 is rotatably connected to a driving sprocket 36. The connecting frame 31 is fixedly connected to a driven sprocket 37. A chain 38 is wound between the driving sprocket 36 and the driven sprocket 37. The sliding frame 24 is fixedly mounted with a collection drive 39, which is a reduction motor. The collection drive 39 drives the connecting frame 31 to rotate on the sliding frame 24 via the driving sprocket 36, chain 38, and driven sprocket 37. The connecting frame 31 drives the heat-conducting sleeve 32 to move within the smelting furnace 10, thereby collecting tin slag from different locations and improving the cleaning efficiency of the tin slag in the smelting furnace 10.

[0046] refer to Figures 1-4 The sliding frame 24 is equipped with an air pump 41, which is connected to an air supply pipe 42. A connecting hole 43 is provided inside the sliding frame 24 to connect with the air supply pipe 42. The sliding frame 24 is provided with a semi-moon air inlet groove 44. The semi-moon air inlet groove 44 is arc-shaped as a whole and the arc center of the semi-moon air inlet groove 44 is located on the rotation axis of the connecting frame 31. The semi-moon air inlet groove 44 is connected to the connecting hole 43. The sliding frame 24 is provided with a semi-moon exhaust groove 45. The semi-moon exhaust groove 45 is arc-shaped as a whole and the semi-moon exhaust groove The arc center of the air groove 45 is located on the rotation axis of the connecting frame 31. A cooling air path 46 is provided within the connecting frame 31. The cooling air path 46 includes a cooling section 47 located at the thermal sleeve 32. A first air hole 48 and a second air hole 49 are provided at each end of the cooling air path 46. The first air hole 48 and the second air hole 49 are both located at the end of the connecting frame 31 near the sliding frame 24. The first air hole 48 and the second air hole 49 are connected to the semi-lunar air inlet groove 44 and the semi-lunar air exhaust groove 45, respectively. The arc radius of the semi-lunar air inlet groove 44 and the semi-lunar air exhaust groove 45 are equal, which can maintain the connection with the first air hole 48 and the second air hole 49. The thermal sleeve 32 is rotatably connected to the connecting frame 31. The end of the thermal sleeve 32 away from the connecting frame 31 is fixedly connected to the clamping plate 33.

[0047] refer to Figure 1 and Figure 5The disengagement device 50 includes a stand 51, a movable frame 52, and a cutting mechanism. The movable frame 52 is horizontally slidably connected to the stand 51. A translational drive 53, a hydraulic cylinder, is provided between the movable frame 52 and the stand 51. The cutting mechanism is fixedly mounted on the movable frame 52 and corresponds to the position of the heat-conducting sleeve 32. A guide plate 61 is fixedly connected to the stand 51, located below the cutting mechanism. A first conveyor belt 62 is provided between the guide plate 61 and the feed end of the crusher 60. The smelting furnace 10 is provided with a feed inlet 12, and a second conveyor belt 63 is provided between the discharge end of the crusher 60 and the feed inlet 12. The cutting mechanism includes multiple blades 54, which are fixedly connected to the movable frame 52 and evenly distributed around the circumference of the heat-conducting sleeve 32. A retaining groove 55 is provided between adjacent blades 54 for the latching plate 33 to engage. The connecting frame 31 is provided with a heating plate 34, which is located in the cooling section 47. The end of the heat conducting sleeve 32 away from the connecting frame 31 is provided with a chamfer 35 that abuts the insert 54. The chamfer 35 abuts the insert 54, allowing the insert 54 to deflect along the chamfer 35 toward the outer circumference of the heat conducting sleeve 32, thereby achieving the function of positioning the insert 54.

[0048] A clean and environmentally friendly tin recovery method, the method comprising the following steps:

[0049] Collecting tin slag: The servo drive mechanism drives the rotating frame 23 to rotate to a position where the thermal sleeve 32 is directly opposite the slag removal port 11. The telescopic drive member 26 drives the thermal sleeve 32 to move through the slag removal port 11 into the smelting furnace 10. The lifting drive member 25 drives the lifting frame 22 and the thermal sleeve 32 downward until the thermal sleeve 32 contacts the slag in the smelting furnace 10. The thermal sleeve 32 absorbs heat, causing the slag to cool and solidify, and then adhere to the thermal sleeve 32. The lifting drive member 25 drives the lifting frame 22 and the thermal sleeve 32 upward, and the telescopic drive member 26 drives the thermal sleeve 32 to move outside the smelting furnace 10.

[0050] Cutting tin slag: The servo drive mechanism drives the rotating shoulder to rotate to a position where the heat-conducting sleeve 32 and the cutting mechanism are opposite. The translation drive member 53 drives the movable frame 52 and the cutting mechanism to move toward the heat-conducting sleeve 32, so that the cutting mechanism contacts the tin slag. After the cutting mechanism cuts the tin slag, the tin slag falls onto the guide plate 61, and the tin slag rolls along the guide plate 61 to the first conveyor belt 62;

[0051] Crushing tin slag: The first conveyor belt 62 conveys the tin slag to the crusher 60, which crushes the tin slag and then conveys it to the second conveyor belt 63;

[0052] Tin recovery: The second conveyor belt 63 conveys the tin slag to the feed port 12 of the smelting furnace 10, and the smelting furnace 10 melts the tin slag.

[0053] This embodiment has the following advantages:

[0054] Tin slag contains molten tin. Since tin adheres to the slag, directly removing the slag will also remove the tin attached to the slag. In the present invention, the heat-conducting sleeve 32, upon contact with the slag, absorbs the heat of the tin attached to the slag, causing the tin to cool, solidify, and adhere to the sleeve 32. This allows the slag to be moved with the sleeve 32 to the outside of the smelting furnace 10, thereby collecting the slag. This reduces the amount of slag within the smelting furnace 10 and facilitates the production of higher-quality tin products. After the sleeve 32 moves toward the cutting mechanism, the movable frame 52 drives the cutting mechanism to move, causing it to contact the slag and cut the slag from the sleeve 32. The slag is then conveyed to the crusher 60 via the first conveyor belt 62 for crushing. The slag is then conveyed to the smelting furnace 10 for re-smelting via the second conveyor belt 63, thereby recovering the tin. The tin recovery process does not generate waste liquid pollution, has minimal environmental impact, and is environmentally friendly, achieving the advantages of cleanliness and environmental protection.

[0055] The rotation center of the connecting frame 31 is moved to the center of the smelting furnace 10 so that the connecting frame 31 can drive the heat-conducting sleeve 32 to rotate 360 ​​degrees, thereby fully collecting the tin slag in the smelting furnace 10.

[0056] When the thermal sleeve 32 comes into contact with the tin slag, the air pump 41 delivers air to the connecting hole 43 through the air supply pipe 42. Air is then injected into the connecting hole 43 through the semi-lunar air inlet groove 44. The air in the connecting hole 43 is then discharged through the semi-lunar exhaust groove 45, thereby allowing air to flow through the cooling section 47. The air flowing through the cooling section 47 dissipates heat and cools the connecting frame 31 and the thermal sleeve 32, ensuring that the thermal sleeve 32 can continuously absorb the heat from the tin slag, thereby ensuring that the tin slag can be stably adhered to the thermal sleeve 32.

[0057] When the connecting frame 31 rotates, the semi-lunar air inlet groove 44 and the semi-lunar air exhaust groove 45 whose arc center is located on the rotation axis of the connecting frame 31 can maintain a state of communication with the first air hole 48 and the second air hole 49, thereby continuously dissipating heat and cooling the connecting frame 31 and the heat-conducting sleeve 32.

[0058] When the thermal sleeve 32 contacts the tin slag, the clamping plate 33 can be inserted into the tin slag. When the thermal sleeve 32 moves with the rotation of the connecting frame 31, the clamping plate 33 encounters greater resistance. Therefore, the clamping plate 33 can rotate due to the resistance of the tin slag. The clamping plate 33 drives the thermal sleeve 32 to rotate, so that the surfaces of different positions of the thermal sleeve 32 can contact the tin slag, so that more tin slag can be collected through the thermal sleeve 32.

[0059] The movable frame 52 drives the plunger 54 to move toward the heat conducting sleeve 32, and the plunger 54 is inserted between the tin slag and the heat conducting sleeve 32, so that the tin slag can be cut off from the heat conducting sleeve 32 by the plunger 54, realizing the function of removing the tin slag on the heat conducting sleeve 32 through the cutting mechanism.

[0060] When the heat-conducting sleeve 32 moves above the guide plate 61, the electric heating plate 34 heats the connecting frame 31 and the heat-conducting sleeve 32, thereby heating the tin slag through the heat-conducting sleeve 32. The tin slag melts again after the temperature rises, thereby reducing the resistance encountered by the insert 54 when cutting the tin slag, ensuring that the tin slag can be removed by the cutting mechanism.

[0061] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and any modifications and variations of the invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience of description only and do not constitute any limitation to the invention.

Claims

1. A clean and environmentally friendly tin recovery system, characterized by: The invention comprises a smelting furnace (10), a collecting device (20), a separating device (50) and a crusher (60), wherein the collecting device (20) comprises a base (21), a lifting frame (22), a rotating frame (23), a sliding frame (24), a connecting frame (31) and a heat-conducting sleeve (32), wherein the lifting frame (22) is vertically slidably connected to the base (21), a lifting driving member (25) is provided between the lifting frame (22) and the base (21), the rotating frame (23) is rotatably connected to the lifting frame (22), a servo driving mechanism is provided between the rotating frame (23) and the lifting frame (22), the sliding frame (24) is horizontally slidably connected to the rotating frame (23), a telescopic driving member (26) is provided between the sliding frame (24) and the rotating frame (23), and the connecting frame (31) is installed on the sliding frame (24). There is a slag removal port (11) for the connecting frame (31) to extend into, the heat-conducting sleeve (32) is installed on the connecting frame (31), the disengaging device (50) includes a platform (51), a movable frame (52), and a cutting mechanism, the movable frame (52) is horizontally slidably connected to the platform (51), a translation driving member (53) is provided between the movable frame (52) and the platform (51), the cutting mechanism is fixedly installed on the movable frame (52), the cutting mechanism corresponds to the position of the heat-conducting sleeve (32), the platform (51) is fixedly connected to a guide plate (61) located below the cutting mechanism, a first conveyor belt (62) is provided between the guide plate (61) and the feed end of the crusher (60), the smelting furnace (10) is provided with a feed port (12), and a second conveyor belt (63) is provided between the discharge end of the crusher (60) and the feed port (12); The sliding frame (24) is provided with an air pump (41), the air pump (41) is connected to an air supply pipe (42), the sliding frame (24) is provided with a connecting hole (43) connected to the air supply pipe (42), the sliding frame (24) is provided with a semi-moon air inlet groove (44), the semi-moon air inlet groove (44) is in an arc shape as a whole, and the arc center of the semi-moon air inlet groove (44) is located on the rotation axis of the connecting frame (31), the semi-moon air inlet groove (44) is connected to the connecting hole (43), the sliding frame (24) is provided with a semi-moon exhaust groove (45), the semi-moon exhaust groove (45) is in an arc shape as a whole, and the semi-moon exhaust groove (45) is in an arc shape as a whole. The arc center of the lunar exhaust groove (45) is located on the rotation axis of the connecting frame (31), the connecting frame (31) is provided with a cooling air path (46), the cooling air path (46) is provided with a cooling section (47) located at the heat-conducting sleeve (32), and the first air hole (48) and the second air hole (49) are provided at both ends of the cooling air path (46), the first air hole (48) and the second air hole (49) are both located at one end of the connecting frame (31) close to the sliding frame (24), and the first air hole (48) and the second air hole (49) are respectively connected to the semi-lunar air inlet groove (44) and the semi-lunar exhaust groove (45); The heat-conducting sleeve (32) is rotatably connected to the connecting frame (31), and one end of the heat-conducting sleeve (32) away from the connecting frame (31) is fixedly connected to a clamping plate (33); The cutting mechanism comprises a plurality of blades (54), the blades (54) being fixedly connected to the movable frame (52), the plurality of blades (54) being evenly distributed around the circumference of the heat-conducting sleeve (32), and avoidance grooves (55) for the clamping plate (33) to be clamped in being provided between adjacent blades (54).

2. The clean and environmentally friendly tin recovery system according to claim 1, characterized in that: The servo drive mechanism comprises a rotary drive member (27), a driving gear (28) and a driven gear (29), wherein the rotary drive member (27) is mounted on a base (21), the driving gear (28) is fixedly mounted on an output shaft of the rotary drive member (27), the driven gear (29) is fixedly connected to a rotating frame (23), and the driving gear (28) is meshed with the driven gear (29).

3. The clean and environmentally friendly tin recovery system according to claim 1, characterized in that: The connecting frame (31) is rotatably connected to the sliding frame (24), the sliding frame (24) is rotatably connected to a driving sprocket (36), the connecting frame (31) is fixedly connected to a driven sprocket (37), a chain (38) is wound between the driving sprocket (36) and the driven sprocket (37), and the sliding frame (24) is fixedly installed with a collecting drive member (39) fixedly connected to the output shaft and the driving sprocket (36).

4. The clean and environmentally friendly tin recovery system according to claim 1, characterized in that: The arc radii of the semi-lunar air inlet groove (44) and the semi-lunar air exhaust groove (45) are equal.

5. The clean and environmentally friendly tin recovery system according to claim 1, characterized in that: The connecting frame (31) is provided with an electric heating plate (34), and the electric heating plate (34) is located at the cooling section (47).

6. The clean and environmentally friendly tin recovery system according to claim 1, characterized in that: An end of the heat-conducting sleeve (32) away from the connecting frame (31) is provided with a chamfer (35) that abuts against the inserting knife (54).

7. A clean and environmentally friendly tin recovery method, characterized in that: A clean and environmentally friendly tin recovery system is used, characterized in that it includes a smelting furnace (10), a collection device (20), a separation device (50) and a crusher (60), wherein the collection device (20) includes a base (21), a lifting frame (22), a rotating frame (23), a sliding frame (24), a connecting frame (31) and a heat-conducting sleeve (32), wherein the lifting frame (22) is vertically slidably connected to the base (21), a lifting drive member (25) is provided between the lifting frame (22) and the base (21), the rotating frame (23) is rotatably connected to the lifting frame (22), a servo drive mechanism is provided between the rotating frame (23) and the lifting frame (22), the sliding frame (24) is horizontally slidably connected to the rotating frame (23), a telescopic drive member (26) is provided between the sliding frame (24) and the rotating frame (23), and the connecting frame (31) is installed on the sliding frame (24). The smelting furnace (10) is provided with a slag removal port (11) for the connecting frame (31) to extend into, the heat-conducting sleeve (32) is installed on the connecting frame (31), the disengaging device (50) includes a platform (51), a movable frame (52), and a cutting mechanism, the movable frame (52) is horizontally slidably connected to the platform (51), a translation driving member (53) is provided between the movable frame (52) and the platform (51), the cutting mechanism is fixedly installed on the movable frame (52), the cutting mechanism corresponds to the position of the heat-conducting sleeve (32), the platform (51) is fixedly connected with a guide plate (61) located below the cutting mechanism, a first conveyor belt (62) is provided between the guide plate (61) and the feed end of the crusher (60), the smelting furnace (10) is provided with a feed port (12), and a second conveyor belt (63) is provided between the discharge end of the crusher (60) and the feed port (12); The method comprises the following steps: Collecting tin slag: the servo drive mechanism drives the rotating frame (23) to rotate to a position where the heat-conducting sleeve (32) and the slag removal port (11) are opposite each other, the telescopic drive member (26) drives the heat-conducting sleeve (32) to move through the slag removal port (11) into the smelting furnace (10), the lifting drive member (25) drives the lifting frame (22) and the heat-conducting sleeve (32) to move downward until the heat-conducting sleeve (32) contacts the slag in the smelting furnace (10), the heat-conducting sleeve (32) absorbs heat to cool and solidify the slag and then adheres to the heat-conducting sleeve (32), the lifting drive member (25) drives the lifting frame (22) and the heat-conducting sleeve (32) to move upward, and the telescopic drive member (26) drives the heat-conducting sleeve (32) to move outside the smelting furnace (10); Cutting tin slag: the servo drive mechanism drives the rotating shoulder to rotate to a position where the heat-conducting sleeve (32) and the cutting mechanism are opposite, and the translation drive member (53) drives the movable frame (52) and the cutting mechanism to move toward the heat-conducting sleeve (32), so that the cutting mechanism contacts the tin slag. After the cutting mechanism cuts the tin slag, the tin slag falls onto the guide plate (61), and the tin slag rolls along the guide plate (61) to the first conveyor belt (62); Crushing tin slag: the first conveyor belt (62) conveys the tin slag to the crusher (60), and the crusher (60) crushes the tin slag and then conveys it to the second conveyor belt (63); Tin recovery: The second conveyor belt (63) conveys the tin slag to the feed port (12) of the smelting furnace (10), and the smelting furnace (10) melts the tin slag.

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